* * * * * C/2003 WT42 (LINEAR) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2006 12 22.82 S 14.2 HS 40.0L 144 0.7 4 YOS Kita-karuizawa, Gunma (It is half a year since my last observation. The comet became fainter, but it is still visible. It seems still well condensed, and not so difficult to catch.) 2006 5 4.47 S 12.8 HS 40.0L 257 0.8 5 YOS Kita-karuizawa, Gunma 2006 5 3.99 S 13.6 AC 41.0L 72 1.4 4 RES Szamotuly-Galowo 2006 5 3.64 S 13.3 HS 40.0L 144 0.9 6 YOS Kita-karuizawa, Gunma (I observed it after moon set.) 2006 5 2.48 S 13.1 HS 40.0L 144 1.1 5/ YOS Kita-karuizawa, Gunma (Round ball, but not so tiny. It looks well in the clear sky. But the central condensation became somewhat weaker. On the other hand, it became somewhat larger.) 2006 5 1.46 S 12.8 HS 40.0L 144 1.0 6 YOS Kita-karuizawa, Gunma (It felt it so faint, but my estimation became similar to the other days.) 2006 4 29.910 S 13.5 TA 31.0J 109 0.8 2 DIJ Sint Annen 2006 4 29.908 S 13.5 TA 31.0J 109 0.7 4 BOU Sint Annen 2006 4 27.966 S 13.3 HN 25.4J 125 0.7 5 BOU Sint Annen 2006 4 26.91 S 13.5 AC 41.0L 121 1.2 4/ RES Szamotuly-Galowo 2006 4 25.95 S 13.5 AC 41.0L 72 1.2 4 RES Szamotuly-Galowo 2006 4 17.97 S 13.6 AC 41.0L 72 1.0 4 RES Szamotuly-Galowo 2006 4 17.45 S 13.0 HS 40.0L 257 0.6 5 YOS Ibaraki, Japan (The sky was very bad. However, the comet was visible at zenith.) 2006 3 31.71 S 13.1:HS 40.0L 144 0.7 6 YOS Ibaraki, Japan (It was just overlapping on a 13.5 mag star at midnight. I observed it when the comet moved away from the star, so it became lower. The comet was still very close to the star, so not easy to see.) 2006 3 29.02 S 13.3 AC 41.0L 72 1.1 4 RES Szamotuly-Galowo 2006 3 24.96 S 13.2 AC 41.0L 72 0.7 3/ RES Szamotuly-Galowo 2006 3 23.94 S 13.2 AC 41.0L 72 1.0 5 RES Szamotuly-Galowo 2006 3 23.918 S 13.7 HN 31.0J 155 0.5 4/ DIJ Sint Annen 2006 3 23.917 S 13.6 HN 31.0J 155 0.6 5 BOU Sint Annen 2006 3 22.964 S 13.1 HN 31.0J 109 1.0 3/ DIJ Sint Annen 2006 3 22.963 S 13.5 HN 31.0J 109 0.5 5 BOU Sint Annen 2006 3 22.88 S 13.2 AC 41.0L 72 0.9 4 RES Szamotuly-Galowo 2006 3 5.58 S 13.1 HS 40.0L 144 0.9 6 YOS Ibaraki, Japan (It looked more unfavorable than Feb. 27 due to the hazy sky and the half moon. But the comet was clearly visible, small and strongly condensed as before.) 2006 3 4.87 S 13.3 AC 41.0L 72 0.6 5 RES Szamotuly-Galowo 2006 3 2.19 S 13.8 HS 25.6L 169 0.5 5 BIV Poigny-la-Forêt 2006 2 27.89 S 13.4 AC 41.0L 72 0.8 3 RES Szamotuly-Galowo 2006 2 27.54 S 13.4 HS 40.0L 144 0.6 6/ YOS Ibaraki, Japan (Very bright. Enjoyable target for a 40-cm telescope. It is easy to see due to the clear sky and high location. Small and strongly condensed as before.) 2006 2 27.16 S 13.7 HS 40.7L 116 0.8 6 BIV Poigny-la-Forêt 2006 2 26.98 S 13.4 AC 41.0L 72 0.8 3/ RES Szamotuly-Galowo 2006 2 23.95 S 13.3 AC 41.0L 72 0.8 3 RES Szamotuly-Galowo 2006 1 31.84 S 13.2 HS 40.7L 233 0.9 4 BIV Poigny-la-Forêt 2006 1 8.73 S 13.7 HS 40.0L 257 0.5 6 YOS Ibaraki, Japan (Not changed at all since October; it did not brighten. The condensation is strong as before, and easier to see with higher magnification. With lower magnification, it looks more diffuse as DC=3 or so.) 2005 12 22.98 S 13.2 TK 20.3T 133 0.7 5 GON Villasecino, León 2005 12 10.14 S 13.3 HS 20.3T 100 0.7 5 GON Alto del Trichero - Soto y Amío, León 2005 11 9.001 S 13.7 TA 31.0J 155 0.8 3 DIJ Sint Annen 2005 11 8.997 S 13.7 TA 31.0J 155 0.5 4 BOU Sint Annen (Small, somewhat condensed object. DSS shows no bright stars or galaxies near comet's position.) 2005 10 24.79 S 13.5 TA 40.0L 257 0.5 5 YOS Kita-karuizawa, Gunma (Hard to see due to the moon light, but I could see a small, moderately condensed comet. I could not see a 15-mag star near by the comet. I could not confirm it on the next day because of clouds.)